Rate of penetration and weight recorder

Claim 1

IN A DRILLING RATE RECORDER: CHART MEANS INCLUDING A REMOVABLE CHART; MEANS TO ADVANCE SAID CHART MEANS AT A UNIFORM RATE ALONG THE LENGTH OF SAID CHART; MEASURING WHEEL MEANS ADAPTED FOR ENGAGEMENT WITH A MEASURING LINE CONNECTED TO THE DRILLING STRING; A STYLUS MEANS PIVOTALLY MOUNTED FOR LATERAL MOVEMENT ACROSS SAID CHART; A PLANETARY GEAR MEANS CONNECTED TO SAID MEASURING WHEEL MEANS FOR ROTATION THEREWITH, SAID GEAR MEANS INCLUDING A PLANET GEAR MOUNTED FOR SIMULTANEOUS ROTATION AND PLANETATION BY SAID GEAR MEANS; AND AN ACTUATING MEMBER CONNECTED TO SAID PLANET GEAR AND ADAPTED TO ENGAGE SAID STYLUS MEANS TO MOVE SAID STYLUS MEANS UPON A PLANETATION THEREOF, THE AMOUNT OF STYLUS MOVEMENT BEING DETERMINED BY THE ROTATIONAL POSITION OF SAID ACTUATING MEMBER UPON ITS OWN AXIS AT THE TIME OF SUCH ENGAGEMENT.